package com.tanhua.server.service;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import com.alibaba.dubbo.config.annotation.Reference;
import com.github.tobato.fastdfs.domain.conn.FdfsWebServer;
import com.github.tobato.fastdfs.domain.fdfs.StorePath;
import com.github.tobato.fastdfs.service.FastFileStorageClient;
import com.tanhua.common.pojo.User;
import com.tanhua.common.pojo.UserInfo;
import com.tanhua.common.service.PicUploadService;
import com.tanhua.common.utils.UserThreadLocal;
import com.tanhua.common.vo.PicUploadResult;
import com.tanhua.dubbo.server.api.QuanZiApi;
import com.tanhua.dubbo.server.api.VideoApi;
import com.tanhua.dubbo.server.pojo.Video;
import com.tanhua.dubbo.server.vo.PageInfo;
import com.tanhua.server.vo.PageResult;
import com.tanhua.server.vo.VideoVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

@Service
@Slf4j
public class VideoService {
    @Reference(version = "1.0.0")
    private VideoApi videoApi;

    @Autowired
    private PicUploadService picUploadService;

    @Autowired
    protected FastFileStorageClient storageClient;

    @Autowired
    private FdfsWebServer fdfsWebServer;

    @Autowired
    private UserInfoService userInfoService;

    @Reference(version = "1.0.0")
    private QuanZiApi quanZiApi;

    @Autowired
    QuanZiService quanZiService;

    /**
     * 小视频上传
     *
     * @param picFile   视频封面图片
     * @param videoFile 视频文件
     * @return
     */
    public Boolean saveVideo(MultipartFile picFile, MultipartFile videoFile) {
        User user = UserThreadLocal.get();

        Video video = new Video();
        video.setUserId(user.getId());
        video.setSeeType(1);

        try {
            // 上传视频封面图片到阿里云OSS
            PicUploadResult picUploadResult = picUploadService.upload(picFile);
            video.setPicUrl(picUploadResult.getName());

            // 视频上传到FastDFS
            StorePath storePath = storageClient.uploadFile(videoFile.getInputStream(),
                    videoFile.getSize(),
                    StrUtil.subAfter(videoFile.getOriginalFilename(), '.', true),
                    null);
            video.setVideoUrl(fdfsWebServer.getWebServerUrl() + storePath.getFullPath());

            String videoId = videoApi.saveVideo(video);
            return StrUtil.isNotEmpty(videoId);
        } catch (IOException e) {
            log.error("上传小视频出错～ userId = " + user.getId() + ", file = " + videoFile.getOriginalFilename(), e);
        }
        return false;
    }

    public PageResult queryVideoList(Integer page, Integer pageSize) {
        User user = UserThreadLocal.get();

        PageResult pageResult = new PageResult();
        pageResult.setPage(page);
        pageResult.setPageSize(pageSize);

        PageInfo<Video> pageInfo = videoApi.queryVideoList(user.getId(), page, pageSize);
        List<Video> records = pageInfo.getRecords();

        if (CollUtil.isEmpty(records)) {
            return pageResult;
        }

        // 查询用户信息
        List<Object> userIds = CollUtil.getFieldValues(records, "userId");
        List<UserInfo> userInfoList = userInfoService.queryUserInfoListByUserIdList(userIds);

        List<VideoVo> videoVoList = new ArrayList<>();
        for (Video record : records) {
            VideoVo videoVo = new VideoVo();

            videoVo.setUserId(record.getUserId());
            videoVo.setCover(record.getPicUrl());
            videoVo.setVideoUrl(record.getVideoUrl());
            videoVo.setId(record.getId().toHexString());
            videoVo.setSignature("我就是我~");// TODO: 签名

            videoVo.setCommentCount(Convert.toInt(quanZiApi.queryCommentCount(videoVo.getId())));// 评论数
            videoVo.setHasFocus(videoApi.isFollowUser(user.getId(), videoVo.getUserId()) ? 1 : 0);// 是否关注
            videoVo.setHasLiked(quanZiApi.queryUserIsLike(user.getId(), videoVo.getId()) ? 1 : 0);// 是否点赞（1是，0否）
            videoVo.setLikeCount(Convert.toInt(quanZiApi.queryLikeCount(videoVo.getId())));// 点赞数

            //填充用户信息
            for (UserInfo userInfo : userInfoList) {
                if (ObjectUtil.equals(videoVo.getUserId(), userInfo.getUserId())) {
                    videoVo.setNickname(userInfo.getNickName());
                    videoVo.setAvatar(userInfo.getLogo());
                    break;
                }
            }

            videoVoList.add(videoVo);
        }
        pageResult.setItems(videoVoList);
        return pageResult;
    }

    /**
     * 点赞视频
     *
     * @param videoPublishId
     * @return
     */
    public Long likeComment(String videoPublishId) {
        User user = UserThreadLocal.get();
        Boolean result = quanZiApi.likeComment(user.getId(), videoPublishId);
        if (result) {
            return quanZiApi.queryLikeCount(videoPublishId);
        }
        return null;
    }

    /**
     * 取消点赞视频
     *
     * @param videoPublishId
     * @return
     */
    public Long dislikeComment(String videoPublishId) {
        User user = UserThreadLocal.get();
        Boolean result = quanZiApi.disLikeComment(user.getId(), videoPublishId);
        if (result) {
            return quanZiApi.queryLikeCount(videoPublishId);
        }
        return null;
    }

    public PageResult queryCommentList(String videoId, Integer page, Integer pageSize) {
        return quanZiService.queryCommentList(videoId, page, pageSize);
    }

    public Boolean saveComment(String videoId, String content) {
        return quanZiService.saveComments(videoId, content);
    }

    /**
     * 关注用户
     *
     * @param userId 要被关注的用户的id
     * @return 关注成功:true,关注失败:false
     */
    public Boolean followUser(Long userId) {
        User user = UserThreadLocal.get();
        return videoApi.followUser(user.getId(), userId);
    }

    /**
     * 取消关注
     *
     * @param userId 要被取消关注的用户的id
     * @return 取消关注成功:true,取消关注失败:false
     */
    public Boolean disFollowUser(Long userId) {
        User user = UserThreadLocal.get();
        return videoApi.disFollowUser(user.getId(), userId);
    }
}
